In late 2005, delegates from all over the world gathered in Montreal to discuss the issue of climate change. An international agreement called the Kyoto Protocol has set targets for industrialized nations to cut greenhouse gases that are contributing to global warming. But many countries, including Canada, are having trouble meeting those targets. In this News in Review story we'll examine why the fight against global warming is proving to be so difficult. We'll also show what some Canadians are doing to try to cool the planet.